Buenos Aires to Las Vegas Time Difference

Las Vegas is 4 hours behind Buenos Aires. The best window for a call is 1 PM–5 PM in Buenos Aires, which is 9 AM–1 PM in Las Vegas — a 4-hour overlap inside 9 AM–5 PM on both sides. Clocks change on November 1, 2026, which briefly shifts the gap between Buenos Aires and Las Vegas — the converter on this page always reflects the correct offset for the date you pick.

• When it's 9:00 AM in Buenos Aires, it's 5:00 AM in Las Vegas.
• When it's 9:00 AM in Las Vegas, it's 1:00 PM in Buenos Aires.

Las Vegas is currently 4 hours behind Buenos Aires.

The 9 AM – 5 PM business windows in Buenos Aires and Las Vegas overlap for 4 hours. 1 PM–5 PM in Buenos Aires is 9 AM–1 PM in Las Vegas. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

On November 1, 2026, Las Vegas shifts for daylight saving. After that, Las Vegas will be 5 hours behind Buenos Aires (currently 4 hours behind Buenos Aires). The converter and the tables above always reflect the correct offset for the date you pick.

• Buenos Aires does not observe daylight saving time.
• Las Vegas is currently observing daylight saving time.

Frequently asked questions

Is Las Vegas ahead of or behind Buenos Aires?

Las Vegas is 4 hours behind Buenos Aires.

How many hours behind Buenos Aires is Las Vegas?

Las Vegas is 4 hours behind Buenos Aires.

What time is 9 AM in Buenos Aires in Las Vegas?

9:00 AM in Buenos Aires is 5:00 AM in Las Vegas.

What time is noon in Buenos Aires in Las Vegas?

12:00 PM in Buenos Aires is 8:00 AM in Las Vegas.

What time is 5 PM in Buenos Aires in Las Vegas?

5:00 PM in Buenos Aires is 1:00 PM in Las Vegas. Useful for end-of-day handoffs between the two offices.

What time is 3 PM in Buenos Aires in Las Vegas?

3:00 PM in Buenos Aires is 11:00 AM in Las Vegas.

Is Buenos Aires currently observing daylight saving time?

Buenos Aires does not observe daylight saving time — its UTC offset stays the same all year.

Is Las Vegas currently observing daylight saving time?

Las Vegas is currently observing daylight saving time (summer time).

Do Buenos Aires and Las Vegas observe daylight saving?

On November 1, 2026, Las Vegas shifts for daylight saving. After that, Las Vegas will be 5 hours behind Buenos Aires (currently 4 hours behind Buenos Aires). The converter and the tables above always reflect the correct offset for the date you pick.

When is the best time to call Las Vegas from Buenos Aires?

Aim for 1 PM–5 PM in Buenos Aires, which is 9 AM–1 PM in Las Vegas.

When is the best time to call Buenos Aires from Las Vegas?

Aim for 9 AM–1 PM in Las Vegas, which is 1 PM–5 PM in Buenos Aires.

Buenos Aires (ART) to Las Vegas (PDT) — how do I convert quickly?

Subtract 4 hours from Buenos Aires local time to get Las Vegas local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

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